Unit2SectionAGrammarFocus课件人教版七年级英语下册

Unit2NoRules,NoOrder

SectionAGrammarFocus课前准备：英语书，校本作业，荧光笔/kjuː//fiːd//liːv//'æbsənt//ʃ//'kwaɪətli//belt//nɔɪz/queue

队伍

n.leave

离开，留下v.feed

喂养，饲养v.absent

缺席的，不在的adj.shh

嘘

interj.quietly

轻声地，安静地adv.noise

声音；噪声n.belt安全带，腰带，皮带n.通过本课时学习，我能够：理解并归纳Imperatives祈使句的句式结构、表意功能和用法。理解区分Modalverbs情态动词can、must、haveto，以及句子的结构特点和它们的表意功能。在语境中准确使用祈使句和情态动词，做到自然得体。Grammar学习目标SectionA

Whatrulesdowefollow?(1)______inthehallway.Don’t______!(2)_____theuniform.______________________toschoolinstead.(3)Don’t______.Makesuretokeeptheschooltidy.(4)______politeand______everyonewithrespect.WalkrunWearDon’twearotherclotheslitterBetreatReview

theschoolrules

MsBrowntalksabout.Tom:Canwe_______sweets?Anne:No,wecan’t_______snacksinclass.Tom:Canwe_______water?Anne:Yes,ofcourse.Tom:Canwe_______mobilephones?Anne:No,wemustn’t_______ourmobilephonestoclass.We

haveto_______themoffand_______theminourlockers.eateatdrinkbringbringturnkeep

ReviewtheschoolrulesAnnetellsTom.Readthesentences.Dotheverbsinbold

needtochange

forms?Why?

Walkinthehallway.Don’trun!Bepoliteandtreatoneanotherwithrespect.Don’tlitter.Youmustn’t

litter./Youcan’t

litter.Canwe

bringourphonestoclass?No,wecan’t.Wemust

keeptheminourlockers.Canweeatsnacksinclass?No,wecan’teatinclass.Wehavetoeatinthedinninghall.Readthesentences.Dotheverbsinbold

needtochange

forms?Why?

Walkinthehallway.Don’trun!Bepoliteandtreatoneanotherwithrespect.Don’tlitter.Youmustn’t

litter./Youcan’t

litter.Canwe

bringourphonestoclass?No,wecan’t.Wemust

keeptheminourlockers.Canweeatsnacksinclass?No,wecan’teatinclass.Wehavetoeatinthedinninghall.在走廊要慢走。

不要跑。要有礼貌，而且要相互尊重。

不要乱扔垃圾。我们可以把手机带去班里吗？

不可以。我们必须把手机保存在储物柜里。我们上课可以吃东西吗？

不行，我们上课不能吃东西。

我们必须在餐厅吃。Walkinthehallway.Don’trun!Bepoliteandtreatoneanotherwithrespect.Don’tlitter./Youmustn’tlitter./Youcan’tlitter.Canwebringourphonestoclass?No,wecan’t.Wemustkeeptheminourlockers.Canweeatsnacksinclass?No,wecan’teatinclass.Wehavetoeatinthedininghall.Readthesentences.Dotheverbsinboldneedtochangeforms?Why?3a粗体ImperativeSentencesWalkinthehallway.Bepoliteandtreatoneanotherwithrespect.Don’trun!Don’tlitter.祈使句Pleasehelpme.（请求）用于表达_________、_________、_________等语气的句子。定义Comeinandwashyourhands.（命令）Bekindtoyourbrother.（劝告）例句祈使句命令请求劝告ImperativeSentences1用于表达命令、劝告、请求。祈使句2以动词原形为开头，主语是you但省略了。(You)Washyourhands.特点ImperativeSentencesDo型祈使句祈使句ImperativeSentencesClosethewindow.肯定句___________

+宾语（+其他）.Don’tclosethewindow.否定句________+动词原形（+其他）.动词原形Don’tBe型祈使句祈使句ImperativeSentencesBecareful.肯定句_____+形容词/名词短语（+其他）.Don’tbeshy.否定句________+形容词/名词短语（+其他）.BeDon’tbeLet型祈使句祈使句ImperativeSentencesLethimcomein.肯定句Let+宾语+_________（+其他）.动词原形Let’sgoshopping.祈使句ImperativeSentencesDon'tlethergo.否定句_______+let+宾语（+其他）.Don’tLethernotgo.Let+宾语+_______+动词原形（+其他）.notLet型祈使句No型祈使句祈使句ImperativeSentencesNosmoking.No+___________（通常表示“禁止……”，用于指示牌、布告等)doing/n.Noswimminginthelake.Walkinthehallway.Don’trun!Bepoliteandtreatoneanotherwithrespect.Don’tlitter./Youmustn’tlitter./Youcan’tlitter.Canwebringourphonestoclass?No,wecan’t.Wemustkeeptheminourlockers.Canweeatsnacksinclass?No,wecan’teatinclass.Wehavetoeatinthedininghall.Readthesentences.Dotheverbsinboldneedtochangeforms?Why?3a1情态动词除了have

to之外，其余没有人称和数的变化2情态动词后跟动词原形特点情态动词ModalVerbsModalVerbs情态动词IlikeEnglishsoImuststudyhard.must必须侧重主观意志have

to不得不无人称和数的变化He

musteatbreakfast.否定形式Wemustnot/musn’t(禁止)talkinclass.一般疑问句及回答问：MustIfinishtheworktoday?必须要...吗？答：Yes,youmust.是的，...必须。

No,youdon’thaveto./needn’t.不，...没必要。Wehavetowearschooluniformsatschool.侧重客观必要有人称和数的变化He

hastoeatbreakfast.否定形式Wedon’thaveto(没有必要)doitnow.一般疑问句及回答问：Do

we

havetofinishtheworktoday?答：Yes,youdo.是的，...必须。

No,youdon’t.不，...没必要。ModalVerbs情态动词Shecancarrymanythings.can表示能力“能”表示请求“可以”Canyoulendmethepen?should表示建议、劝告“应该”否定形式cannot=can’t否定形式Youshouldfinishhomeworkbefore9p.m.shouldnot=shouldn’tCompletethesentencesusingcan,haveto/must,orcan't/mustn't.3b1.Don’tjumpthequeue.You______________waityourturn.2.I______feedmydogmanykindsoffood,butI______________givehimchocolate.Itisbadforhim!3.A:CanIleavetheclassroomifIdon'tfeelwell?B:Yes,butyou_____tellyourteacheraboutitwhenyou_________beabsentfromclass.4.A:Hey!CanIlookatyourbook?B:Shh,we______________talkquietlyinthelibrary.5.A:Canyouputonyourseatbelt?We______________wearonewhenwe'reinacar.B:Sure.Thanks!haveto/mustcancan’t/mustn’thavetocanhaveto/musthaveto/mustjumpthequeue插队jointhequeue排队feed

v.喂养feedsb.喂养某人/物feedonsth.以...为食bebadfor...对...有害leavev.1.离开Turnoffthelightwhenyouleavetheroom.离开房间关灯。2.留下Leaveanoteifyougoout.如果你出去，留个便签。feelwell身体感到良好feelgood心情好beabsentfrom...缺席...(场合)put的【动副型】短语puton穿上;戴上;增加putup张贴;搭建;举起putaway把...放好putoff推迟等待轮到你系上安全带Completethesentencesusing

can,haveto/must,orcan’t/mustn’t.Don’tjumpthequeue.You_______________waitforyourturn.I_____feedmydogmanykindsoffood,butI_______givehimchocolate.Itisbadforhim!A:CanIleavetheclassifIdon’tfeelwell?B:Yes,butyou______________tellyourteacheraboutitwhenyou________beabsentfromclass.4.A:Hey!CanIlookatyourbook?B:Shh,we______________talkquietlyinthelibrary.5.A:Canyouputonyourseatbelt?We______________wearonewhenwe’reinacar.B:Sure.Thanks!must/havetocancan’tmust/havetohavetomust/havetomust/haveto插队等待轮到你adj.身体好jointhequeue排队beabsentfrom缺席系上安全带Lookatthefirstsignandreadtherules.Thenwriterulesfortheothersigns.Donoteatordrink.Noeating

ordrinking.Youcan’t/mustn’teatordrink.Don’tparkhere.Noparkinghere.

Youcan’t/mustn’tparkhere.Don’ttakephotos.No

photos.

Youcan’t/mustn’ttakephotos.Don’tswim.Noswimming.

Youcan’t/mustn’tswim.Don’tfeedthebirds.Nofeeding.

Youcan’t/mustn’tfeedthebirds.Ingroups,brainstormthreerulesforoneoftheplacesbelow.3dlibrary

school

dining

hall

park

cinema

hospitalInthelibrary,wemustkeepquiet.Wemustn’tmakenoise.Wecan’tbringfoodtothelibrary.Wecan’ttalkloudlyinthelibrary.Wehavetoreturnthebooksontime.…noisen.噪声makenoise制造噪音根据汉语提示说出英文表达。插队等待轮到你很多种食物上课缺勤小声说话系上安全带制造噪音jumpthequeuewaitforyourturnmanykindsoffoodbeabsentfromclasstalkquietlyputontheseatbeltmakenoise1.Jim,you___________cleanyourroomnow.It’ssodirty.2.You___________eattoomuchice-cream.It’snothealthy.3.Cindyliveswithhergrandparentsandshe__________seeherparentsonlyonweekends.4.Mybikedoesn’tworksoI____________walktoschool.5.You____________doyourhomeworkrightnow.You__________doitafterdinner.can’tmustcanmust/haveto

can,can’t,must,haveto,don’thavetoI.根据语境，从方框中选择恰当的情态动词填空。don’thavetocanⅡ.根据括号内的要求完成下列各题，每空一词(含缩略形式)。1.Youcan’tdrawonthedesk.(改为祈使句)______________onthedesk.2.—Canyoutalkinthelibrary?(补全否定答语)—No,______________.3.Stevehastogohomebeforeseven.(改为否定句)Steve_____________________gohomebeforeseven.4.Janehastoexerciseeveryday.(改为一般疑问句并作肯定回答)—_______Jane______________exerciseeveryday?—_______,______________.I/wecan’tDon’tdrawdoesn’thavetoDoeshave